/*
 * Copyright 2020 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

const fs = require('fs');
const path = require('path');

/**
 * Generates Chrome version information.
 */
module.exports = async function buildVersionInformation() {
  const chromeReleaseDataFile = path.join(
    __dirname,
    '../../external/data/chrome-release.json'
  );
  const data = /** @type {{channels: Object<string, ChromeReleaseData>}} */ (
    JSON.parse(fs.readFileSync(chromeReleaseDataFile, 'utf-8'))
  );

  for (const channel in data.channels) {
    const o = data.channels[channel];
    // JSON-encoding flattens this to a string, so reconstruct the Date.
    o.stableDate = new Date(o.stableDate);
  }

  return data;
};
